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US11486557B2ActiveUtilityPatentIndex 59

Vehicle lamp, lamp unit, and reflector module

Assignee: KOITO MANUFATURING CO LTDPriority: Oct 19, 2018Filed: Oct 18, 2019Granted: Nov 1, 2022
Est. expiryOct 19, 2038(~12.3 yrs left)· nominal 20-yr term from priority
Inventors:NAKANISHI YOSHIYUKIMURAMATSU TEPPEI
F21S 41/25F21S 41/148F21S 41/32F21S 41/55F21S 41/675F21S 41/39F21S 41/47F21S 41/141F21S 45/47F21S 41/36F21W 2102/13F21S 41/143F21S 41/295F21S 45/46F21Y 2115/10F21S 41/43F21V 23/002F21W 2107/10F21S 41/28F21S 41/2805
59
PatentIndex Score
0
Cited by
8
References
15
Claims

Abstract

To provide a vehicle lamp that, without providing an additional light blocking member, is capable of blocking light emission that is not routed via a lens or reflector for light distribution control, with a simple and compact configuration. It is provided with a first substrate 61b on which a first light source 61a is mounted that emits first light L1 towards the front of the lamp, a second substrate 62b provided in non-parallel to the first substrate 61b, wherein a second light source 62a for emitting second light L2 in a direction different from the direction of the first light L1 is mounted on the second substrate, and a rotating reflector 8 that rotates a reflective surface about a rotating shaft, the reflective surface reflecting the second light L2, wherein part of the first light L1 is blocked by a protruding portion 62c provided where one end of the second substrate 62b protrudes in the direction of emission of the first light L1 beyond the point of intersection where the extension of the first substrate 61b intersects the second substrate 62b.

Claims

exact text as granted — not AI-modified
The invention claimed is: 
     
       1. A lamp unit, comprising a light emitting element, a substrate on which the light emitting element is mounted, a rotating reflector for rotating a reflective surface about a rotating shaft, the reflective surface reflecting light of the light emitting element a rotating reflector case that holds the rotating reflector, a projection lens for projecting the light traveling via the reflective surface to a lamp front, a lens bolder that holds the projection lens, and a support member that supports the substrate, the rotating reflector, and the lens holder, the lamp unit including,
 a cover lens that is disposed between the light emitting element and the reflective surface and made of a transparent member that transmits the light emitted by the light emitting element, and a fixing member that secures the cover lens to the substrate, 
 the lamp unit being characterized in that the fixing member blocks part of the light emitted from the cover lens. 
 
     
     
       2. The lamp unit of  claim 1 , wherein the cover lens includes a light distribution control portion for projecting the light emitted from the light emitting element to the reflective surface of the rotating reflector, the cover lens further including a leg portion integrally molded with the light distribution control portion,
 wherein the fixing member includes an opening that exposes the light distribution control portion, and 
 wherein the fixing member blocks the part of the light emitted from the cover lens that does not enter the light distribution control portion. 
 
     
     
       3. The lamp unit of  claim 1 , wherein the fixing member includes a vertical wall on at least part of a peripheral edge of the opening, the vertical wall blocking part of the light emitted by the light emitting element. 
     
     
       4. The lamp unit of  claim 1 ,
 wherein the fixing member includes a vertical wall on at least part of a peripheral edge of the opening, and 
 wherein the vertical wall blocks part of the light emitted by the light emitting element that is not projected to the rotating reflector. 
 
     
     
       5. The lamp unit of  claim 1 ,
 wherein the fixing member includes a vertical wall on at least part of a peripheral edge of the opening, and 
 wherein the vertical wall is interposed between the projection lens and the cover lens. 
 
     
     
       6. A reflector module comprising a reflector with a reflective surface on a front sick and a case that contains the reflector,
 the reflector module being characterized in that a vertical wall is provided on a periphery of an inner bottom surface of the case, the vertical wall enclosing an outer peripheral surface of the reflector, and 
 that a motor is disposed on a back side of the reflector for rotating the reflector about a rotating shaft via a bottom of the case, 
 wherein the motor includes a motor drive unit for driving the motor, 
 wherein a cover is provided on an outer bottom surface of the case to cover at least part of the motor drive unit, 
 wherein the motor drive unit includes a yoke portion and a control circuit board on which a control circuit for controlling the yoke portion is mounted, 
 wherein the cover includes an opening that exposes part of the yoke portion, and 
 wherein a gap formed between the yoke and the control circuit board is provided where the gap is not exposed via the opening. 
 
     
     
       7. The reflector module of  claim 6 , wherein the front side of the reflector is contained further inward than a top end plane of the vertical wall. 
     
     
       8. The reflector module of  claim 6 ,
 wherein a cover is provided on an outer bottom surface of the case to cover at least part of the motor drive unit, and 
 wherein a retainer member is provided on an outer bottom surface of the cover to retain, in a predetermined position, a wiring member used to supply power to the motor. 
 
     
     
       9. The reflector module of  claim 6 ,
 wherein a cover is provided on an outer bottom surface of the case to cover at least part of the motor drive unit, 
 wherein a retainer member is provided on an outer bottom surface of the cover to retain, in a predetermined position, a wiring member used to supply power to the motor, 
 wherein the retainer member includes a shielding wall that shields the wiring member used to supply power to the motor and the yoke portion from coming into contact with each other, and 
 wherein an engaging portion that supports the wiring member from both sides thereof is provided in a portion of the shielding wall. 
 
     
     
       10. A lamp unit, comprising a light emitting element a substrate on which the light emitting element is mounted, a rotating reflector for rotating a reflective surface about a rotating shaft, the reflective surface reflecting light of the light emitting element, a rotating reflector case that holds the rotating reflector, a lens for projecting the light traveling via the reflective surface to a lamp front, a lens holder that holds the lens, and a support member that supports the substrate, the rotating reflector, and the lens holder,
 wherein the lens holder includes a main body that holds that lens and fastening portions that fasten the main body to the support member, and 
 the lamp unit characterized in that the fastening portions have base ends thereof on the main body and are erected towards a lamp rear, the fastening portions being disposed where the fastening portions are shielded by the lens and the main body as seen from a front of the lamp unit. 
 
     
     
       11. The lamp unit of  claim 10 , wherein the lens holder includes two or more of the fastening portions and an approximately U-shaped reinforcing member that has base ends thereof on one fastening portion and another fastening portion and extends toward the lamp rear. 
     
     
       12. The lamp unit of  claim 10 ,
 wherein the lens holder includes two or more of the fastening portions, 
 wherein the main body is formed in a shape of an approximate rectangular frame, and 
 wherein the fastening portions arc provided in approximate centers of a pair of long sides of the main body. 
 
     
     
       13. The lamp unit of  claim 10 ,
 wherein the lens holder includes two or more of the fastening portions, 
 wherein the fastening portions have a bole into which a bar-shaped fastening member is inserted, and 
 wherein the holes are open in a direction parallel to a lens surface of the lens. 
 
     
     
       14. The lamp unit of  claim 10 ,
 wherein the substrate and the rotating reflector case have holes into which a bar-shaped fastening member can be inserted, and 
 which the holes in the substrate and the rotating reflector case are open in the same direction as the holes in the lens holder. 
 
     
     
       15. The lamp unit of  claim 10 ,
 wherein the lens holder includes two or more of the fastening portions and an approximately U-shaped reinforcing member that has base ends thereof on one fastening portion and another fastening portion and extends toward the lamp rear, 
 wherein the rotating reflector case and the lens holder are supported by the support member in positions where the rotating shaft of the rotating reflector is not parallel to an optical axis of the lens, 
 wherein the fastening portions and the reinforcing member of the lens holder include ribs erected toward the rotating reflector case, and 
 wherein the ribs of the reinforcing member are lower than the ribs of the connecting portions.

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